Class: Cassanity::ArgumentGenerators::WhereClause

Inherits:
Object
  • Object
show all
Defined in:
lib/cassanity/argument_generators/where_clause.rb

Instance Method Summary collapse

Instance Method Details

#call(args = {}) ⇒ Object

Internal



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# File 'lib/cassanity/argument_generators/where_clause.rb', line 13

def call(args = {})
  where = args[:where]
  cql = ''
  return [cql] if where.nil? || where.empty?

  variables, wheres = [], []

  where.each do |key, value|
    case value
    when Array
      wheres << "#{key} IN (?)"
      variables << value
    when Range
      start, finish = value.begin, value.end
      end_operator = value.exclude_end? ? '<' : '<='
      wheres << "#{key} >= ?"
      wheres << "#{key} #{end_operator} ?"
      variables << start
      variables << finish
    when Cassanity::Operator
      wheres << "#{key} #{value.symbol} ?"
      variables << value.value
    else
      wheres << "#{key} = ?"
      variables << value
    end
  end

  cql << " WHERE #{wheres.join(' AND ')}"

  [cql, *variables]
end